Evaluation of adhesive properties of three resilient denture liners by the modified peel test method

Tanimoto, Yasuhiro; Saeki, Hiroyuki; Kimoto, Suguru; Nishiwaki, Tsuyoshi; Nishiyama, Norihiro

doi:10.1016/j.actbio.2008.08.021

Cited by 22 publications

(26 citation statements)

References 12 publications

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“…These researchers believed that the “lifting force” for a stiffer material was more likely to cause debonding because the stress was transferred to the interface area, while for a softer material, this force was more likely to deform the soft lining elastically and leave the interface area intact. A similar tendency for the same three SLTSDL materials in the peel test was observed by Tanimoto et al [85]; however, after 30 additional days of water storage, lower peel resistance was recorded. Machado et al [86] observed that the peel bond strength of two autopolymerized SLTSDLs was not affected by microwave disinfection.…”

Section: The Bond Strength To Denture Base Polymerssupporting

confidence: 86%

Long-Term Soft Denture Lining Materials

2014

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Long-term soft denture lining (LTSDL) materials are used to alleviate the trauma associated with wearing complete dentures. Despite their established clinical efficacy, the use of LTSDLs has been limited due to the unfavorable effects of the oral environment on some of their mechanical and performance characteristics. The unresolved issue of LTSDL colonization by Candida albicans is particularly problematic. Silicone-based LTSDL (SLTSDL) materials, which are characterized by more stable hardness, sorption and solubility than acrylic-based LTSDLs (ALTSDLs), are currently the most commonly used LTSDLs. However, SLTSDLs are more prone to debonding from the denture base. Moreover, due to their limitations, the available methods for determining bond strength do not fully reflect the actual stability of these materials under clinical conditions. SLTSDL materials exhibit favorable viscoelastic properties compared with ALTSDLs. Furthermore, all of the lining materials exhibit an aging solution-specific tendency toward discoloration, and the available cleansers are not fully effective and can alter the mechanical properties of LTSDLs. Future studies are needed to improve the microbiological resistance of LTSDLs, as well as some of their performance characteristics.

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Section: The Bond Strength To Denture Base Polymerssupporting

confidence: 86%

Long-Term Soft Denture Lining Materials

2014

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“…Thus, more laboratory time and extra costs are needed so as to construct dentures with permanent soft lining related to the equipment and materials used. Hence, an adequate bond between the denture base and the soft lining material is necessary 4,6,7,17,18. Previous studies17,19,20 have showed that Molloplast-B soft lining material (Detax, Karl Huber GmbH and Co., KG, Ettlingen, Germany) is one of the preferred materials for long-term clinical use because of its low water absorption and solubility.…”

Section: Introductionmentioning

confidence: 99%

Peel strength of denture liner to PMMA and polyamide: laser versus air-abrasion

Korkmaz

Bağış²,

Özcan

et al. 2013

J Adv Prosthodont

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PURPOSEThis study investigated the effect of laser parameters and air-abrasion on the peel strength of silicon-based soft denture liner to different denture resins.MATERIALS AND METHODSSpecimens (N=180) were prepared out of three different denture base resins (Rodex, cross-linked denture base acrylic resin; Paladent, heat-cured acrylic resin; Deflex, Polyamide resin) (75 mm × 25 mm × 3 mm). A silicon-based soft denture liner (Molloplast B) was applied to the denture resins after the following conditioning methods: a) Air-abrasion (50 µm), b) Er,Cr:YSGG laser (Waterlase MD Turbo, Biolase Technology) at 2 W-20 Hz, c) Er,Cr:YSGG laser at 2 W-30 Hz, d) Er,Cr:YSGG laser at 3 W-20 Hz, e) Er,Cr:YSGG laser at 3 W-30 Hz. Non-conditioned group acted as the control group. Peel test was performed in a universal testing machine. Failure modes were evaluated visually. Data were analyzed using two-way ANOVA and Tukey's test (α=.05).RESULTSDenture liner tested showed increased peel strength after laser treatment with different parameters (3.9±0.4 - 5.58±0.6 MPa) compared to the control (3.64±0.5 - 4.58±0.5 MPa) and air-abraded groups (3.1±0.6 - 4.46±0.3 MPa), but the results were not statistically significant except for Paladent, with the pretreatment of Er,Cr:YSGG laser at 3 W-20 Hz. Polyamide resin after air-abrasion showed significantly lower peel strength than those of other groups (3.1±0.6 MPa).CONCLUSIONHeat-cured acrylic resin, PMMA, may benefit from Er,Cr:YSGG laser treatment at 3 W-20 Hz irradiation. Air-abrasion of polyamide resins should be avoided not to impair their peel bond strengths to silicon-based soft denture liners.

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“…As silicone rubber materials do not adhere well to acrylic denture base resins, primers and finishing materials are used to induce adherence. However, the life expectancy of these materials is typically only a few months 5,6) . One of the aims of this study was to increase the durability of soft lining materials.…”

Section: Discussionmentioning

confidence: 99%

“…The silicone rubber lining materials in use at present, however, do not adhere well to acrylic denture base resins. Thus, primers and finishing materials are used to induce adherence, although the durability of these materials is poor 5,6) . Riggs et al 7) proposed new soft lining materials composed of a butadiene/styrene copolymer gelled with methacrylate, but these materials exhibit high water uptake and signs of oxidation.…”

Section: Introductionmentioning

confidence: 99%

Mechanical properties and cytotoxicity of experimental soft lining materials based on urethane acrylate oligomers

et al. 2009

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The purpose of this investigation was to determine whether experimental light-curing soft lining materials (ESLMs) based on commercially available urethane acrylate oligomers (UA-160TM, UV-3200B, UV-3500BA, and UV-3700B) are suitable for clinical use by measuring their viscosity, compressive modulus, Shore A hardness, tensile strength, adhesive strength, and cytotoxicity. The viscosities of the four ESLMs at 25°C were 10.5 Pa•s, UV-3500BA; 144.0 Pa•s, UA-160TM; 328.8 Pa•s, UV-3700B; and 1079.7 Pa•s, UV-3200B. Polymerized UV-3700B was very soft, whereas the softness of the other ESLMs was similar to that of conventional soft lining materials. No significant difference in adhesive strength was observed between UV-3500BA and UV-3700B at 1 day and those at 12 months. Cytotoxicity was measured by a MTT-based assay using HeLa S3 and Ca9-22 cells. UV-3200B and UV-3700B oligomers and all four polymerized ESLMs showed cell viability over 95.2% (p < 0.05).

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Evaluation of adhesive properties of three resilient denture liners by the modified peel test method

Cited by 22 publications

References 12 publications

Long-Term Soft Denture Lining Materials

Long-Term Soft Denture Lining Materials

Peel strength of denture liner to PMMA and polyamide: laser versus air-abrasion

Mechanical properties and cytotoxicity of experimental soft lining materials based on urethane acrylate oligomers

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